How many 12mm pumps over 800 on fuel? Over 900?

A lot of pullers are c.1,200-1,500 at the crank with built 12mm pumps, but good luck seeing any of them on the Internet ;)
 
RonA said:
I hear how easy it is to get 800-900 hp with a 12mm pump on fuel only and was looking for a show of hands and what setup you are running. Again, fuel only 12v or 24v/p-pump.
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I don't see anything here about charger size?
 
Yeah Buddy! I was wondering when you would chime in!
 
Btp 2332 said:
I can vouch for Wimers, he built my 12mm 7-8 years ago.
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I damn near got a brand new pump pushing 700cc for 1k. The only thing i didnt get done internally was the cam. He told me if i ever did want it done to just bring the pump back. I say money well spent.:Cheer:
 
JQmile said:
I don't see anything here about charger size?
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I think we are assuming 2.6 for a puller because we doubt a 3.0 truck running a 12mm pump. I dont even know of a worthwhile 2.6 truck running a 12mm pump.
 
ninerqb8 said:
I think we are assuming 2.6 for a puller because we doubt a 3.0 truck running a 12mm pump. I dont even know of a worthwhile 2.6 truck running a 12mm pump.
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The ones I know of are mostly Open Class/Brush pullers who use a lot of air to make up for the lack of fuel...and the pumps are mostly built by the same few people.

Didn't Darren do 900+ in his 1/2 ton a while back on a 12mm?
 
5150ram said:
887 pump 1000.8 hp. 15:1cr 66mm over a 97mm turbo
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Was watching some of your videos the other day. Safe to say you didn't do it at 20* of timing? :p Sounded pretty wicked!

I'm at 28 maybe 28.5 now according to the dial gauge and the truck has responded pretty well at wot from what my 50% accurate sotp says. Here is a general question that's been on my mind. Would it be safe to say that a 12mm pump could benefit more from more timing than a 13mm given the 12mm pump does not inject the fuel as quick as a 13mm will? Just a thought.
 
madmikeismad said:
Wish I'd have know, I just went through there on the way to chris's a few weeks ago. I stopped on the 3rd exit to pick up a trans for Jesse. I'm looking up that Winsted one now.

Thanks!
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If you're talking about the one by the John Deere dealer that's the one you take to get to my place.


Sorry about the hijack Ron.
 
JQmile said:
The ones I know of are mostly Open Class/Brush pullers who use a lot of air to make up for the lack of fuel...and the pumps are mostly built by the same few people.

Didn't Darren do 900+ in his 1/2 ton a while back on a 12mm?
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I got ya. I could see 1200 on a well tuned truck. 600cc is about the most usable flow you you can get from a 12mm pump so at 2hp per cc thats 1200 with real good tuning. I am real curious to see who has gotten there, and what they had for a setup.
 
NickTF said:
Was watching some of your videos the other day. Safe to say you didn't do it at 20* of timing? :p Sounded pretty wicked!

I'm at 28 maybe 28.5 now according to the dial gauge and the truck has responded pretty well at wot from what my 50% accurate sotp says. Here is a general question that's been on my mind. Would it be safe to say that a 12mm pump could benefit more from more timing than a 13mm given the 12mm pump does not inject the fuel as quick as a 13mm will? Just a thought.
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That make good sense from my uneducated opinion, I would be curious what a good pump guy would say about that.
 
It would seem a great many, that share on the interweb, who make sizeable power #2 only with a 12mm pump run pretty high timing (over 25*) stock pistons or not. There are always exceptions to the rule ofcourse.
 
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ninerqb8 said:
I got ya. I could see 1200 on a well tuned truck. 600cc is about the most usable flow you you can get from a 12mm pump so at 2hp per cc thats 1200 with real good tuning. I am real curious to see who has gotten there, and what they had for a setup.
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Ill let you know after ts an im only at 21°the of timing. What do you mean there is only 600cc usable fuel from a 12mm?
 
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